à la carte; ordering individual dishes
Refers to ordering dishes individually from a menu, as opposed to a set course meal.
This restaurant has a good selection of à la carte dishes, not just set courses.
single-dish meal; one-plate meal
A meal consisting of a single main dish eaten by itself, without separate side dishes. Often used in contexts like donburi or curry rice.
On busy afternoons, I often make do with a single-dish meal.